
trắc nghiệm hóa 8
Quiz
•
Chemistry
•
8th Grade
•
Medium
Nguyễn Huyền
Used 226+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Dãy gồm toàn CTHH của oxit là:
CuO, Ag2O, PbO, HCl, CO
CO, CaO, NaOH, BaSO4
PbO, HCl, CO, CaO
CuO, Ag2O, PbO, CO, CaO
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy gồm toàn CTHH viết sai là:
Fe3O2, KO
Al2O3, CuO
CaO, Al2O3.
Na2O, Al2O3.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy chất gồm các oxit axit là:
CO2, SO2, NO, P2O5.
CO2, SO3, Na2O, NO2.
SO2, P2O5, CO2, SO3.
H2O, CO, NO, Al2O3.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy chất gồm các oxit bazơ:
CuO, NO, MgO, CaO.
CuO, CaO, MgO, Na2O.
CaO, CO2, K2O, Na2O.
K2O, FeO, P2O5, Mn2O7.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tên gọi củaAl2O3 là:
Nhôm oxit
Đi nhôm tri oxit
Nhôm (III) oxit
Nhôm (II) oxit.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Biết N có hoá trị III, hãy chọn công thức hoá học phù hợp với qui tác hoá trị trong đó có các công thức sau:
NO
N2O
N2O3
NO2
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Biết Cr hoá trị III và O hoá trị II. Công thức hoá học nào sau đây viết đúng?
CrO
Cr2O3
CrO2
CrO3
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